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RTD Upgrading CNG Series-Hybrid Shuttles with UQM Generators and Controllers
9 August 2005
UQM has received an order from the Denver Regional Transportation District (RTD) for generators and motor controllers to retrofit seven CNG-fueled series-hybrid-electric mall shuttle buses.
Each 45-foot hybrid electric mall shuttle bus will be retrofitted with a 35-kW UQM generator and two UQM power electronic motor controllers to control the operation of the electric propulsion motors currently installed in each bus.
The hybrid buses are powered by a CNG-fueled 2.5-liter, 70-hp, 4-cylinder Ford industrial engine that operates at 2,200 rpm and turns the UQM generator.
RTD has also begun upgrading the energy storage systems in the hybrids from lead-acid to Cobasys NiMH battery packs. (Earlier post.)
The buses are part of a 36-shuttle hybrid mall fleet built by TransTeq (a Denver company) and introduced in 2000.
August 9, 2005 in Fleets, Hybrids, Natural Gas | Permalink | Comments (0) | TrackBack (0)
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